Document Type

Article

Publication Date

10-8-2025

Identifier

DOI: 10.1016/j.xgen.2025.100977

Abstract

The NPIP gene family is among the most positively selected gene families in humans/apes and drives independent duplication in primate lineages. These duplications promote genetic instability, leading to recurrent disease-associated microduplication and microdeletion syndromes. Despite its importance, little is known about its function or variation in humans, as short-read sequencing cannot distinguish high-identity duplications. Using long-read assemblies of 169 human haplotypes, we find extreme variation in the content and organization of NPIP loci. We identify fixed and polymorphic paralogs and observe ongoing positive selection. With long-read RNA sequencing (RNA-seq), we create paralog-specific gene models, the majority of which were not previously documented, and observe paralog-specific tissue specificity. This analysis of an exceptionally dynamic gene family provides candidates for future functional study.

Journal Title

Cell Genom

Volume

5

Issue

10

First Page

100977

Last Page

100977

MeSH Keywords

Humans; Selection, Genetic; Genome, Human; Multigene Family; Haplotypes; Animals; Genetic Variation; Evolution, Molecular

PubMed ID

40848717

Keywords

copy-number variation; human evolution; segmental duplication; structural genomic variation

Comments

Grants and funding

This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/4.0/).

Publisher's Link: https://linkinghub.elsevier.com/retrieve/pii/S2666-979X(25)00233-2

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